Originally Posted by
luisjuan
You have used 88 kgs of fuel in the past 2 hours and 45 mins. How much do you burn per hour?
Think I can do this one, although not sure this is the simplest or fastest way.
Basically its asking you 88 divided by 2.75
It is easier for me if I express 2.75 as a fraction, so 11 quarters (or 11/4)
88/(11/4)
You can then times 88 by the inverse of the fraction.
=(88x4)/11
=352/11
=32
Or another way actually, still think of 2 hrs 45 mins as 11/4 hours..
Divide 88 by 11 which equals 8..
If you add another 1/4 to the total, i.e. 12/4, that equals 96 kgs in 3 hours..
You can then simply divide 96/3= 32